Beautiful country areas around Oxfordshire?

[An Exception]

I have quite a few couple shoots coming up soon, I was just wondering if anyone here can recommend any particularly beautiful locations around Oxfordshire?

I'v already tried googling a bit, but nothing is really inspiring me.

 

[An Exception]

Thanks for you suggestions, if anymore come to mind I would be very grateful!

 

[An Exception]

Thanks for all your suggestions everyone. I think Harcourt Arboretum looks particularly cool.